A separation technique where a mixture is passed through a column packed with stationary phase material, separating components based on their different affinities for the stationary and mobile phases. Different compounds elute at different times based on their chemical properties.
From 'column' (the cylindrical container) and 'chromatography' from Greek 'chroma' (color) and 'graphein' (to write), coined by Russian botanist Mikhail Tsvet in 1906 when he separated plant pigments. Originally the separated compounds appeared as colored bands.
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